Toothache Traditionally, Spilanthes acmellais called as anti-toothache plant. The pungent flower heads of the plants were chewed by people as they deaden or numb the tooth pain, throat problems or paralysis of the tongue. The component responsible for this is Spilanthol.

Local anesthetic property is the loss of sensation in a circumscribed area of the body caused by depression of excitation in nerve endings or inhibition of the conduction process.